With the new system announced letting you get extra pieces of loot with a bonus roll currency there’s an issue which I fundamentally disagree with which is that raid loot should cost more.
While M+ has a greater item pool at the end of the day that would still reward twice the mythic track item to use bonus rolls in M+ if your goal is to be efficient. With raiding already being largely inefficient for loot in term of time spent this double down again on making M+ more effective while sure I understand the power of raid items people are spending a lot of time in those to get them already.
I think it makes more sense for m+ to stay with the vendor system which it can also use the same currency and so you can make them cost the same amount. With how big the loot tables of m+ are I feel the amount of rng is also a bit too high.
There’s also the worry overall that this is adding much more obtainable mythic track loot outside of raid which in turn like heroic gear will diminish raiding usefulness outside of a couple items in the raid. I’m still adamant with current systems with how inefficient raiding is for gearing unless you get funneled either with splits or etc. that it could easily get more loot (and crest drops).